Gadolinium(III) bromide

Gadolinium(III) bromide is a crystalline compound of gadolinium atoms and three bromine atoms. This salt is hygroscopic.

Gadolinium(III) bromide

Names
IUPAC name Gadolinium(III) bromide
Other names Gadolinium tribromide Gadolinium bromide
Identifiers
CAS Number	13818-75-2
3D model (JSmol)	Interactive image Interactive image
ECHA InfoCard	100.034.072
EC Number	237-494-4
PubChem CID	24872012
CompTox Dashboard (EPA)	DTXSID9065653
InChI InChI=1S/3BrH.Gd/h3*1H;/q;;;+3/p-3 Key: KGOKDPWKDBWITQ-UHFFFAOYSA-K
SMILES Br[Gd](Br)Br [Br-].[Br-].[Br-].[Gd+3]
Properties
Chemical formula	GdBr3
Molar mass	396.96g[1]
Density	2.844 g/cm3<
Melting point	770 °C (1,420 °F; 1,040 K)[1]
Boiling point	1,455 °C (2,651 °F; 1,728 K)
Solubility in water	Soluble[2]
Solubility	Also soluble in THF, 1,2-Diethoxyethane, p-dioxane, and alkyl amine.[2]
Hazards
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335[1]
Precautionary statements	P261, P305+P351+P338[1]
Related compounds
Other anions	Gadolinium(III) fluoride Gadolinium(III) chloride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Preparation

Gadolinium(III) bromide can be obtained by the reaction between gadolinium and hydrobromic acid:^[3]

${\displaystyle \mathrm {2\ Gd+6\ HBr\longrightarrow 2\ GdBr_{3}+3\ H_{2}} }$

The anhydrous form can be obtained by heating the hydrate with ammonium bromide.^[3]

References

1. "Gadolinium(III) bromide anhydrous, powder, 99.99% trace rare earth metals basis | Sigma-Aldrich". www.sigmaaldrich.com. Retrieved 21 December 2016.
2. "13818-75-2 - Gadolinium(III) bromide, ultra dry, 99.99% (metals basis) - 43673 - Alfa Aesar". www.alfa.com. Retrieved 21 December 2016.
3. Georg Brauer (Hrsg.), unter Mitarbeit von Marianne Baudler u. a.: Handbuch der Präparativen Anorganischen Chemie. 3., umgearbeitete Auflage. Band I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6, S. 1077.